[KeyframeEffect-getKeyframes.tentative.html]
  expected:
    if (os == "android") and fission: [OK, TIMEOUT]
  [KeyframeEffect.getKeyframes() returns expected frames for an animation with multiple keyframes for the same time and with different easing functions and composite operations]
    bugs: https://bugzilla.mozilla.org/show_bug.cgi?id=1778402
    expected: FAIL

  [KeyframeEffect.getKeyframes() returns expected values for animations with implicit values and a non-default timingfunction specified for 0% and 100%]
    bugs: https://bugzilla.mozilla.org/show_bug.cgi?id=1778403
    expected: FAIL

  [KeyframeEffect.getKeyframes() returns expected values for animations with background-size properties and missing keyframes]
    expected: FAIL